author = "Hirokazu Tsukahara and Masahiro Hiraoka and Mitsufumi Mayumi and Shigeru Nishimaki and Miho Sato and Hiromi An and Michiru Hashimoto and Yoshiko Nishiyama and Shiho Iwasaki and Itaru Tateishi and Kazuo Seki and Shumpei Yokota and Yoshio Shima",